Finding the Fourth Proportional to 68,628.08, 102,871.62 and 38,982.62
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Solution
The fourth proportional to 68,628.08, 102,871.62 and 38,982.62 is: 58,433.88
Step by Step Solution
- Step 1: Write the proportion equation
68,628.08 : 102,871.62 = 38,982.62 : x - Step 2: Convert to fraction form
68,628.08/102,871.62 = 38,982.62/x - Step 3: Cross multiply
68,628.08x = 102,871.62 × 38,982.62 - Step 4: Simplify right side
68,628.08x = 4,010,205,271.24 - Step 5: Solve for x
x = 4,010,205,271.24/68,628.08 - Step 6: Final answer
x = 58,433.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.